release-changelog.yml

name: Auto Changelog PR

on:
  release:
    types: [published]

    
jobs:
  changelog:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the Beta9 repo
        uses: actions/checkout@v3

      - name: Fetch the latest release data
        id: release
        uses: actions/github-script@v7
        with:
          script: |
            function formatDate(dateString) {
              const date = new Date(dateString);
              const month = String(date.getMonth() + 1).padStart(2, '0');
              const day = String(date.getDate()).padStart(2, '0');
              const year = String(date.getFullYear()).slice(-2);
              return `${month}-${day}-${year}`;
            }

            function prettyDate(dateString) {
              const date = new Date(dateString);

              return new Intl.DateTimeFormat('en-US', {
                year: 'numeric',
                month: 'long',
                day: 'numeric',
                timeZone: 'UTC',
              }).format(date);
            }

            const release = context.payload.release;

            // log the release object to help debug failed actions
            console.log(release);

            const lines = release.body.split('\n');

            const feats = [];
            const fixes = [];
            for (const line of lines) {
              if (line.startsWith('*')) {
                const m = line.match(/^\*\s*([fF]eat|[fF]ix):\s*(.*)\s*/);
                if (m) {
                  const [_, type, description] = m;
                  const byIndex = description.indexOf('by');
                  
                  if (type.toLowerCase() === 'feat') {
                    const cleanedDesc = description.slice(0, byIndex).trim();
                    feats.push(cleanedDesc);
                  } else if (type.toLowerCase() === 'fix') {
                    const cleanedDesc = description.slice(0, byIndex).trim();
                    fixes.push(cleanedDesc);
                  }
                }
              }
            }
            
            // Stop the workflow if no features or fixes are found
            if (feats.length === 0 && fixes.length === 0) {
              core.setOutput('should_continue', 'false');
              core.setOutput('error_message', 'No features or fixes found in the release notes. Stopping workflow.');
              return;
            }

            core.setOutput('name', release.tag_name);
            core.setOutput('new_feats', JSON.stringify(feats));
            core.setOutput('new_fixes', JSON.stringify(fixes));
            core.setOutput('created_at', formatDate(release.created_at));
            core.setOutput('pretty_date', prettyDate(release.created_at));
            core.setOutput('should_continue', 'true');

      - name: Checkout beam-docs repo
        if: steps.release.outputs.should_continue == 'true'
        uses: actions/checkout@v3
        with:
          repository: slai-labs/beam-docs
          path: beam-docs
          token: ${{ secrets.BEAM_DOCS_PAT }}

      - name: Process changelog
        if: steps.release.outputs.should_continue == 'true'
        id: process_changelog
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const path = require('path');

            const filename = `./beam-docs/v2/releases/${process.env.CREATED_AT}.mdx`;
            let existingFeats = [];
            let existingFixes = [];

            if (fs.existsSync(filename)) {
              const content = fs.readFileSync(filename, 'utf8');
              const featuresMatch = content.match(/## Features\n([\s\S]*?)(?=\n## |$)/);
              const fixesMatch = content.match(/## Fixes\n([\s\S]*?)(?=\n## |$)/);

              if (featuresMatch) {
                existingFeats = featuresMatch[1].split('\n').filter(line => line.trim().startsWith('-')).map(line => line.trim().slice(2));
              }
              if (fixesMatch) {
                existingFixes = fixesMatch[1].split('\n').filter(line => line.trim().startsWith('-')).map(line => line.trim().slice(2));
              }
            }

            const newFeats = JSON.parse(process.env.NEW_FEATS);
            const newFixes = JSON.parse(process.env.NEW_FIXES);

            const allFeats = [...new Set([...existingFeats, ...newFeats])];
            const allFixes = [...new Set([...existingFixes, ...newFixes])];

            const featsString = allFeats.map(feat => `- ${feat}`).join('\n');
            const fixesString = allFixes.map(fix => `- ${fix}`).join('\n');

            core.setOutput('feats', featsString);
            core.setOutput('fixes', fixesString);

        env:
          CREATED_AT: ${{ steps.release.outputs.created_at }}
          NEW_FEATS: ${{ steps.release.outputs.new_feats }}
          NEW_FIXES: ${{ steps.release.outputs.new_fixes }}

      - name: Create new release file in beam-docs
        if: steps.release.outputs.should_continue == 'true'
        run: |
          cd beam-docs/v2/releases
          FILENAME="./${{ steps.release.outputs.created_at }}.mdx"
          if [ -f "$FILENAME" ]; then
            rm -f $FILENAME
          fi

          echo "---" >> $FILENAME
          echo "title: \"${{ steps.release.outputs.pretty_date }}\"" >> $FILENAME
          echo "---" >> $FILENAME
          echo "" >> $FILENAME
          echo "## Features" >> $FILENAME
          echo "" >> $FILENAME
          echo "${{ steps.process_changelog.outputs.feats }}" >> $FILENAME
          echo "" >> $FILENAME
          echo "## Fixes" >> $FILENAME
          echo "" >> $FILENAME
          echo "${{ steps.process_changelog.outputs.fixes }}" >> $FILENAME
          echo "" >> $FILENAME

      - name: Update mint.json
        if: steps.release.outputs.should_continue == 'true'
        run: |
          cd beam-docs
          NEW_FILE="v2/releases/${{ steps.release.outputs.created_at }}"
          jq --arg new_file "$NEW_FILE" '
            .navigation[] |= 
              if .group == "Releases" then 
                .pages |= if index($new_file) then . else [$new_file] + . end
              else 
                .
              end
          ' ./mint.json > ./mint.json.tmp && mv ./mint.json.tmp ./mint.json

      - name: Commit and push changes
        if: steps.release.outputs.should_continue == 'true'
        run: |
          cd beam-docs
          git config --global user.name "github-actions"
          git config --global user.email "actions@github.com"
          git checkout -b autochangelog/${{ steps.release.outputs.name }}
          git add .
          git commit -m "Add changelog for ${{ steps.release.outputs.name }}"
          git push -u origin autochangelog/${{ steps.release.outputs.name }}

      - name: Create pull request
        if: steps.release.outputs.should_continue == 'true'
        env:
          GH_TOKEN: ${{ secrets.BEAM_DOCS_PAT }}
        run: |
          cd beam-docs
          gh pr create --title "Changelog for ${{ steps.release.outputs.name }}" --body "This PR adds the changelog for ${{ steps.release.outputs.name }}." --base main --head autochangelog/${{ steps.release.outputs.name }}